Non-Destructive Evaluation of Fibers Orientation in Fiberconcrete (with Nano Additives) Prism
2013
Vitālijs Zaharevskis, Andrejs Krasņikovs, Oskars Liniņš, Anita Geriņa-Ancāne

There is a supposition that homogeneous distribution of spatially arbitrary oriented fibers in a volume leads to homogeneous spatially arbitrary distributed fibers orientation on the surface of the crack. At the same time, high scatter of experimental results in fiberconcrete bending tests is observed experimentally, proving non-homogeneous fibers distribution in a volume and according to spatial orientations. One possibility to solve this problem is to use fiberconcrete with internal oriented fibers structure. In this work fiberconcrete prisms with oriented (in each prism longitudinal direction) short steel fiber structure were elaborated [1]. Two metallic combs were prepared, mould with fiberconcrete was placed on the shaking table and fibers in the mould were combed. Fiber orientation results were controlled by X-ray analysis and by ultrasonic device. All prisms were loaded by 4 point bending and load bearing – crack opening curves were obtained.


Keywords
fibroconcrete, nano additives, X-ray analysis, FEM model

Zaharevskis, V., Krasņikovs, A., Liniņš, O., Geriņa-Ancāne, A. Non-Destructive Evaluation of Fibers Orientation in Fiberconcrete (with Nano Additives) Prism. Production and Engineering. Vol.35, 2013, pp.59-64.

Publication language
English (en)
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